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From JoonHyun Pac <shiba...@gmail.com>
Subject Re: maximum hosts per cluster
Date Thu, 25 Oct 2012 10:59:50 GMT
The limit of hosts are 16 but it's too big for just one master host.
I'm using 8 hosts per cluster and it works fine.


On Thu, Oct 25, 2012 at 5:59 PM, Julien Garet <julien.garet@inria.fr> wrote:

> Hello,
>
>
> Still in deployment planning, I am wondering how much hosts should I put
> in a single cluster ? I am using Cloudstack 3.0.2 with KVM on CentOS 6.2
> hosts.
>
>
> What are the advantages and drawbacks of putting hosts in the same cluster
> ?
>
>
> From what I see, if I am in the same cluster, I can migrate instances
> between hosts, what I can not do between different clusters, I can also
> migrate primary storage.
>
>
> What happens if I had more than 16 hosts in a KVM cluster (16 seems to be
> the limit from the advanced install guide).
>
>
> I am using iSCSI luns as primary storage and Dell C6220 servers (4 servers
> in 2U chassis, sharing power input). I thought first I would divide each
> chassis in its own cluster, but, from management side, I need to create a
> new lun for every chassis. If I need to do some operations on a chassis, I
> need to put all servers in the cluster in maintenance mode, but it seems I
> can't do that ! At least one server should be up, no ?
>
>
> Any advice would be greatly appreciated
>
>
> ------
> Attention, changement d'adresse et de numéro de téléphone !
> Julien GARET
> DSI / SESI
> Bureau B201
> Inria Lille-Nord Europe
> Bâtiment B, 6 rue Heloise
> 59650 Villeneuve d'Ascq
> téléphone: 03.59.35.86.86
> portable: 06.79.88.10.47
>

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